Air filtration device filter pin



FIG. 1 is a top front perspective view of an air filtration devicefilter pin showing our new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a front elevation view thereof.

FIG. 5 is a rear elevation thereof.

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a right side elevation view thereof.

The broken lines are shown for environmental purposes only and form nopart of the claimed design.

CLAIM The ornamental design for an air filtration device filter pin, asshown and described.